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Spectrophotometric microdetermination of uranium with m- and p-carboxyphenylazo-chromotropic acid

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Summary

A simple and rapid method for the spectrophotometric determination of uranium usingm- andp-carboxyphenylazo-chromotropic acid is given. The optimum conditions favouring the formation of the two complexes are reported. The molecular structure was found to be 1 ∶ 1 and 1 ∶ 2 of uranium to them- or thep-compound. Beer's law is obeyed for the ranges 2–16 and 2–18 ppm of uranium in the case of them- andp- compound respectively.

Zusammenfassung

Eine spektrophotometrische Methode zur Bestimmung von Uran mit Hilfe vonm-bzw.p-Carboxyphenylazochromotropsäure wurde beschrieben. Die besten Arbeitsbedingungen für die Bildung der beiden Komplexe wurden angegeben. Die Zusammensetzung entspricht dem Verhältnis 1 ∶ 1 bzw. 1 ∶ 2 von Uran zurm-bzw. zurp-Verbindung. Das Beer'sche Gesetz ist für die Bereiche 2–16 bzw. 2–18 ppm Uran im Falle derm-bzw. derp- Verbindung erfüllt.

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Authors and Affiliations

  1. Faculty of Science, Cairo University, Giza, Egypt

    H. Khalifa, Y. M. Issa & N. T. Abdel-Ghani

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  1. H. Khalifa
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  2. Y. M. Issa
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  3. N. T. Abdel-Ghani
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Khalifa, H., Issa, Y.M. & Abdel-Ghani, N.T. Spectrophotometric microdetermination of uranium with m- and p-carboxyphenylazo-chromotropic acid. Mikrochim Acta 65, 451–455 (1976). https://doi.org/10.1007/BF01218276

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  • DOI: https://doi.org/10.1007/BF01218276

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